If I were you I would not invest in anything expensive at this point. A vacumn pump might help. A fake vagina might help. An anal stimulator might help - but only if you stil have sensitvity in your anus as it is easy to overuse.
what I am finding out is that yoru level of injury can go one way or the other. Some people after about a year get the feelings and abilities back - others don't. There doesn't seem to be a reason why some do and some don't.
There is a fake vagina and a butt plug I sell on
http://www.sexsupport.org/toys.html - they are both not too expensive and might be worth a try. There are inexpensive vacumn pumps, but if they work - so will the other sex toys.